Biology · Human Respiratory System
The air we inhale during respiration is primarily filtered by which of the following structures?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Vocal cords in the larynx
- 2Rings of cartilage in the trachea
- 3Cilia present in the alveoli
- 4Fine hairs and mucus lining in the nostrils✓
Correct answer
Fine hairs and mucus lining in the nostrils
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